Risk factors affecting benign anastomotic stricture in anterior and low anterior resections for colorectal cancer: a single-center retrospective cohort study.

PURPOSE: Although not as life-threatening as anastomotic leakage, anastomotic stricture reduces the quality of life. The risk factors for such an important life complication have not been revealed. This article examines the risk factors affecting anastomotic strictures due to colorectal cancers. METHODS: Patients who underwent anterior and low anterior resection for colorectal cancer under elective conditions between 2015 and 2021 were included in the study. The patients were divided into two groups, those who developed anastomotic stricture and those who did not. The parameters determined between the two groups were compared, and multivariate analysis of statistically significant parameters was performed. RESULTS: A total of 375 patients were included in the study. The anastomotic stricture was detected in 36 (9.6%) patients. In the multivariate analysis, non-mobilization of the splenic flexure and a proximal clean surgical margin of < 10 cm and a distal surgical margin of < 2 cm were identified as risk factors affecting anastomotic stricture. The risk factor with the highest odds ratio in the development of anastomotic stricture is the non-mobilization of the splenic flexure (p = 0.001, OR 11.375). CONCLUSION: It is recommended that the mobilization of the splenic flexure to reduce the development of strictures. In addition, a clean surgical margin of 10 cm proximally and 2 cm distally and high ligation of the inferior mesenteric artery may reduce the development of stricture.

Risk factors affecting failure of colonoscopic detorsion for sigmoid colon volvulus: a single center experience.

PURPOSE: Colonoscopic detorsion (CD) is the first treatment option for uncomplicated sigmoid volvulus (SV). We aim to examine the factors affecting the failure of CD. METHODS: The files of patients, treated after diagnosis of SV between January 2015 and September 2020, were retrospectively reviewed. Patients' demographic data, comorbidities, endoscopy reports, and surgical and other treatments were recorded. Patients were divided into two groups, as the successful CD group and unsuccessful CD group. The data were compared between the groups, and multivariate analysis of statistically significant variables was performed. RESULTS: There were 21 patients in the unsuccessful CD group and 52 patients in the successful CD group. The unsuccessful CD rate was found to be 28.76%; this is likely a function of more neuropsychiatric disease, more accompanying sigmoid diverticulum, previous abdominal surgery, abdominal tenderness, onset of symptoms for more than 48 h, higher mean intra-abdominal pressure (IAP), IAP over 15 mmHg, larger mean diameter of the cecum, the cecum diameter over 10 cm, and higher mean C-reactive protein (CRP) values as statistically significant. In the multivariate analysis, previous abdominal surgery and cecum diameter over 10 cm were seen as predictive factors for failure of CD (p=0.049, OR=0.103, and p = 0.028, OR=10.540, respectively). CONCLUSIONS: CD failure rate was significantly associated with previous abdominal surgery and a cecum diameter over 10 cm. We found that patients with these factors will tend to need more emergency surgery.

Metastatic gastric signet-ring cell carcinoma: A rare cause of acute appendicitis.

We report a 32-year-old patient who underwent laparoscopy with classical symptoms and signs of acute appendicitis. An inflamed, edematous and non-perforated appendix, also a large amount gelatinous ascites, omental and peritoneal implants were seen. Appendectomy was performed and multiple biopsies were taken from omentum and peritoneum for definitive diagnosis. Histopathologic diagnosis was a metastatic gastric signet-ring cell carcinoma (GSRCC) involving appendix and other specimens. A flat lesion involving corpus to antrum was diagnosed by gastroscopy and GSRCC was verified histopathologically in a tertiary centre and the case evaluated as stage IV gastric carcinoma. This case with no sign of gastric cancer was presented as an acute appendicitis. Metastatic carcinoma to the appendix, causing acute appendicitis is extremely rare in clinical practice and usually associated with high morbidity and mortality.

The adaptation process of a teaching and research hospital to changing trends in modern breast surgery.

OBJECTIVE: Minimally invasive surgery is increasingly gaining importance in breast surgery parallel to other surgical branches. Sentinel lymph node biopsy (SLNB) is a method that has radically changed the approach to breast surgery in the last decade of the 20(th) century. In this study, we aimed to evaluate the adaptation process to these alterations in breast surgery at our clinic. MATERIAL AND METHODS: Patients who underwent surgery with a diagnosis of breast cancer in our clinic between April 2010 and November 2013 were retrospectively evaluated in terms of demographic characteristics, the number of operations and type of surgical methods applied according to years, SLNB performance rate, and results of frozen section and histopathological analysis. The first year of SLNB practice was accepted as part of the learning curve, and 24 patients who were operated during that period underwent routine axillary dissection. RESULTS: The median age of 198 patients who were included in the study was 55 years (25-89). It was detected that the number of cases who underwent surgery for breast cancer increased in years, that the SLNB application rate increased from 37% to 66% between 2010 and 2013 (p=0.01), and SLNB staining rates increased from 70% to 94% (p=0.03). When only results from the last four years were evaluated, the mean staining rate in patients with SLNB (n=105) was 88% (n=92), with positive histopathology in 32% of these cases (n=30). Despite a decreasing trend over the years, a metastatic axillary lymph node was detected in paraffin block evaluation in spite of negative frozen section examination of SLNB in five cases, and 5 patients (5%) out of 97 patients who underwent breast conserving surgery required re-excision. The histopathological diagnosis was invasive ductal carcinoma in 84% (n=167) of patients. CONCLUSION: It was observed that during the four-year period of adaptation, the application rate of breast conserving surgery and SLNB reached accepted standards, and that both the technical problems encountered in SLNB and the requirement for re-excision after breast conserving surgery significantly decreased with increasing case volume and experience.

Giant juvenile fibroadenoma.

Juvenile fibroadenoma is a common cause of breast masses seen in adolescents and young women. Giant juvenile fibroadenomas are usually single and unilateral. The etiology is thought to be due to increased levels of estrogen during adolescence, although it is not yet fully understood. Treatment options range from simple excision to sub-cutaneous mastectomy according to the size of the lesion. This article aimed to present a case that was diagnosed with "giant juvenile fibroadenoma".

Minimal invasive endoscopic management of synchronous granular cell tumours in the colon and posterior mediastinum.

Granular cell tumour (GCT), which is a rare benign soft tissue neoplasm, is mostly found in the skin and soft tissue but may develop anywhere in the body. There are less than 10 reported cases of mediastinal GCTs in the current literature. Furthermore, colonic GCTs have recently gained attention due to the increased public awareness on the importance of colonoscopy screening. We report a case of a 52-year-old woman diagnosed incidentally with synchronous GCTs of the mediastinum and the hepatic flexure on her routine screening for post-operative follow-up for status-post right modified radical mastectomy due to a T2N1M0, Stage 2B breast cancer.

The early results of our initial experience with robotic adrenalectomy.

OBJECTIVE: Robotic adrenalectomy is one of the minimally invasive surgical methods gaining wide acceptance due to the three-dimensional imaging system and ergonomics of the equipment. We aimed to present the early data on patients who underwent robotic adrenalectomy due to adrenal masses in our hospital. MATERIAL AND METHODS: The records of eight cases, in which a unilateral robotic trans-peritoneal adrenalectomy was conducted due to an adrenal mass between 2011 and 2013, have been evaluated. Demographic characteristics of cases, body mass index (BMI), American Society of Anesthesiologists (ASA) score, preoperative diagnosis, diameter and localization of the adrenal mass, operative time, blood loss, conversion rate to open surgery, morbidity and mortality rates, length of hospital stay, total hospital charges and postoperative pathologic results were considered. RESULTS: The female to male ratio was 6:2, the median age was 49.5 (26-71) and the median BMI was 29.7 (21.7-38.5). An adrenalectomy was performed in six cases for a right adrenal mass and in two cases for a left adrenal mass. The mean tumor diameter was 53.6 mm (20-90). The average surgical time (including docking) was 98 min. (55-175 min.) and the average blood loss was 50 mL. The only complication was a diaphragm injury which was repaired robotically. There were no conversions to traditional laparoscopic or open surgery and there have not been any mortality in the series. The median length of hospital stay was 4.1 days (range 2-11) and the average cost was 3617.12 TL ($1808.56). CONCLUSION: Robotic adrenalectomy is an effective and safe surgical alternative to laparoscopic adrenalectomy. However its high cost has emerged as its main disadvantage.

The growing role of laparoscopic repair in patients with early diagnosed peptic ulcer perforation.

OBJECTIVE: Laparoscopy is gaining more importance in emergency abdominal surgery. Peptic ulcer perforation (PUP) constitutes a significant portion of surgical emergencies. The aim of this study was to evaluate the methods and results of patients who underwent surgery due to PUP in our department. MATERIAL AND METHODS: Patients who were admitted to the hospital in the early period and received Graham-patch (GP) repair due to PUP from January 2009 to January 2013 were divided into two groups as laparoscopic (group L) or open (group O) surgery. Demographic data of the patients, duration of the operation, conversion to open surgery, length of hospital stay, secondary interventions, re-admissions, morbidity and mortality rates were retrospectively evaluated. Patients with conversion to open surgery were included in Group O. RESULTS: Two hundred and nineteen patients were included in the study, 148 of which were in Group O (including the 47 patients with conversion), and 71 in group L. In patients with early admission, the rate of laparoscopically completed GP was 19.6% in the first year of the study, whereas this rate was 61.8% in the fourth year (p<0.001). The rate of conversion to open surgery was 50% in 2009, and 24.4% in 2012 (p=0.028). Length of hospital stay was shorter in group L (p=0.35). The complication rate was 4.2% in patients who had laparoscopic procedures, and was 6.1% in patients who underwent open surgery (p=0.57). Seventy-three percent (n=11) of re-hospitalized patients in the perioperative period (n=15) were treated conservatively. When costs related to secondary interventions and re-hospitalization were included, there was no significant difference between laparoscopic and open surgery groups in terms of cost (p=0.06). CONCLUSION: Laparoscopic surgery for PUP is a reliable method and has been used increasingly over the years in our department. The operative time is longer, the length of hospital stay is shorter, the complication rates are less than open surgery, and the conversion rate is significantly reduced. Laparoscopic GP is feasible in early-admitted patients with PUP, due to the above-mentioned advantages. We believe the rate of conversion to open surgery decreases with increasing experience in laparoscopy.

Computed Tomography Findings Affecting the Decision of Sternotomy in Substernal Goiter.

Objectives: Although thyroidectomy is completed with a cervical incision in most patients with substernal goiter (SG), sternotomies may be required occasionally. The purpose of this study is to examine computed tomography (CT) findings that may predict the need for sternotomy in SG surgery. Methods: Neck-thoracic CT images of patients who underwent total thyroidectomy with the diagnosis of SG between 2013 and 2022 were retrospectively examined. The patients (n=41) were divided into two groups: sternotomies (n=6) and cervical (n=35). Preoperative pathological data, CT findings, and postoperative complications of the patients were recorded. Results: The total thyroid volume of the sternotomy group (280.75±127.01 mm3) was significantly greater than that of the cervical group (155.38±74.18 mm3) (p=0.015). The retrosternal thyroid volume (mm3), thyroid craniocaudal, and anterior-posterior dimensions (mm) were significantly greater in the sternotomy group (p=0.001, p<0.001, and p=0.004, respectively). While the majority of mediastinal extension degrees in the cervical group were grade 1 (80%), grade 2 (83%) predominated in the sternotomy group (p=0.001). Conclusion: The radiological findings of total thyroid volume, retrosternal thyroid tissue volume, retrosternal thyroid length, thyroid anterior-posterior dimension, and mediastinal extension degree on CT are valuable in predicting the decision to perform a sternotomy in SG surgery.

Comparison of DaVinci Si and Xi robotic platforms for adrenal surgery. Effects on short term outcomes.

OBJECTIVES: To evaluate our experience and short term surgical outcomes between two robotic systems. METHODS: The present study retrospectively analyzed 38 cases, who underwent robotic adrenalectomy between 2012-2019 at our center. The patients were divided into Group Si (n=11) and Group Xi (n=27), and the results of these two groups were compared. RESULTS: Demographic characteristics of both groups were similar between two groups. While, 42% of the patients had Cushing syndrome, 22% had Pheochromocytoma and 22% had Conn syndrome in the Xi group, 72% of the patients were non-secreting adrenocortical adenoma in Si group (p=0.005). The mean docking time in Group Xi was shorter than Si group (p=0.027). Console and total operation times were similar in both groups (p=0.312 and p=0.424; respectively). The intraoperative complication rate (p=0.500) and hospital stay (3.2±1.0 vs. 2.52±1.42 days, respectively, p = 0.077) were similar in both groups. Postoperative 4th and 12th hour Visual Analog Scale (VAS) scores were similar (p=0.213 and p=0.857; respectively). The average cost of robotic consumables was $210 higher in Xi group (p=0.495). CONCLUSION: Our study shows that; the Xi robotic system is as safe as the Si system for adrenalectomy operations. KEY WORDS: Adrenal gland surgery, Minimally invasive adrenalectomy, Robotic surgery.

An unusual finding after adrenal surgery: a case series of adrenal schwannomas.

Adrenal schwannomas are rare benign tumors with no specific imaging and laboratory findings to diagnose preoperatively. Due to the limited number of cases in the literature, clinical, imaging, and pathological findings are presented in this study. Case 1 is a 61-year-old woman patient who has a 31-mm mass in the right adrenal gland. This mass was nonfunctional; in imaging studies, this mass had a cystic necrotic component, and high 18-fluorodeoxyglucose (FDG) uptake was seen. There was no metaiodobenzylguanidine (MIBG) uptake. Laparoscopic transabdominal right adrenalectomy was performed, and the pathology result was consistent with adrenal schwannomas. Case 2 is a 63-year-old man patient who presented with a 38-mm mass in the left adrenal gland. This mass was nonfunctional and similar to that in Case 1; this mass had a cystic component. Laparoscopic transabdominal left adrenalectomy was performed. The diagnosis of adrenal schwannoma with degeneration was revealed. Case 3 was a 72-year-old woman patient admitted to the hospital for a 125-mm left adrenal mass. Similar to Case 1, this mass also had a cystic necrotic component in imaging studies. High FDG uptake was seen, and the patient underwent conventional adrenalectomy due to the suspicion of malignancy. After pathological evaluation, a diagnosis of adrenal schwannoma was made. A main diagnostic challenge in adrenal schwannomas is the preoperative diagnosis. These masses have no pathognomonic finding or specific hormonal function. Imaging findings of these masses may increase the suspicion of malignancy, which may affect decisions for surgery and the surgical technique.

The effect of COVID-19 process on patients with endocrinological disease in a pandemic hospital: What happened to the others?

Objective: To evaluate the effects of the pandemic process on those with an endocrinological disease that will require close follow-up from the last visit before the pandemic. Materials and Methods: Patients of 3,903 with thyroid, calcium-bone metabolism, adrenal gland, pituitary diseases, and neuroendocrine tumor (NET) were retrospectively scanned. The remaining 855 (656 females and 199 males) patients with active disease or who still needed multidisciplinary approaches were included. The number of patients who continued the disease-related medical procedures and could complete these procedures on time in the pandemic period was determined, and medical deprivation rate (MDR) was calculated. Results: The prepandemic period of our patients with thyroid disease (n = 594), calcium-bone metabolism disorder (n = 130), adrenal disease (n = 85), pituitary disease, and NET (n = 46) had MDRs of 85%, 56%, 81%, and 89%, respectively. For each subgroup of patients, the lowest MDR (67%) was in medullary thyroid carcinoma, the highest MDR (89%) was in differentiated thyroid carcinoma; the lowest MDR (6%) was in osteoporosis, the highest MDR (100%) was in the active Paget's disease; the lowest MDR (0%) was in primary adrenocortical insufficiency, the highest MDR (100%) was in hyperfunctional adrenal adenomas; the lowest MDR (81%) was in pituitary nonfunctional adenomas, and the highest MDR (100%) was in Cushing's disease, active prolactinoma, TSHoma, and NET, respectively. Conclusion: This study showed that not only those who had COVID-19 but also those who had medical deprivation due to their current endocrinological disease were not to be underestimated during the pandemic period.

Inhibition of PANX1 Channels Reduces the Malignant Properties of Human High-Risk Neuroblastoma.

Pannexin 1 (PANX1) is expressed in many tissue types including tissues of neural origin. Neuroblastoma (NB) is a neural crest-derived malignancy mainly occurring in children. The majority of NB patients present with high-risk disease for which current therapies are ineffective. Here, we show that while PANX1 is expressed in NB of all stages, high PANX1 expression in high-risk NB is associated with a reduced survival probability. PANX1 channel inhibition using probenecid (PBN) or carbenoxolone (CBX) reduced the proliferation of our panel of high-risk NB cell lines. We show that expression of the Y10F PANX1 mutant, which cannot be phosphorylated on tyrosine 10 and acts in a dominant-negative manner, curtailed NB cell proliferation. Furthermore, PBN and CBX treatment halted the growth of NB spheroids and in some cases triggered the regression of established NB spheroids. Finally, both drugs reduced the progression of high-risk NB in vivo. Together our data indicate that PANX1 channels regulate human NB malignant properties and that the use of PBN or CBX may provide a new therapeutic approach for high-risk NB.

Comparison of urgent and elective thyroidectomy complications in Graves' disease.

BACKGROUND: Surgical treatment of Graves' disease (GD) has increased risk for bleeding, hypothyroidism and recurrent laryngeal nerve (RLN) palsy compared to other benign thyroidectomy indications. Nevertheless, it can be done safely in high volume centers. In some particular cases (i.e., anti-thyroid drug intolerance or thyrotoxicosis), urgent surgical treatment might be needed. In this study, we aimed to compare the complications of thyroidectomy in urgent and elective management of Graves' disease. METHODS: The patients, who underwent total thyroidectomy due to Graves' disease between 2012-2019 (n=113) were evaluated retrospectively in terms of demographics, pre-operative laboratory results, management, hospital admissions, operative and post-operative short-term outcomes, morbidity and mortality. Patients who were hospitalized to endocrinology department due to uncontrollable hyperthyroidism and related complications and who were prepared for surgery with Lugol's solution, plasmapheresis and steroids were considered as Urgent Group (n=12). Remaining 101 patients who underwent elective surgery considered as Elective Group. Surgical short-term outcomes, morbidity and mortality rates were compared. RESULTS: Of the 113 patients who were operated for GD, 92 were female and 21 were male. In urgently operated group, FT4 and FT3 levels were significantly higher (p<0.001 and p=0.001, respectively). There was no significant difference in transient or permanent hypocalcemia (p=0.821 and p=0.501, respectively), transient or permanent RLN palsy (p=0.356, p=0.634, respectively) and post-operative bleeding (p=0.338), between elective surgery and rapid optimization groups. CONCLUSION: Emergency surgery for Graves' disease can be performed safely with the application of effective pre-operative treatment protocols. KEY WORDS: Graves' Disease, Thyroidectomy complications, Urgent thyroidectomy.

Association between Acute Pancreatitis and COVID-19: Could Pancreatitis Be the Missing Piece of the Puzzle about Increased Mortality Rates?

BACKGROUND: The COVID-19 pandemic caused by SARS-CoV-2 commenced in Wuhan China in 2019 and soon spread worldwide. SARS-CoV-2 enters the cell by binding to the ACE II receptor and begins viral replication. The effects and clinical findings of SARS-CoV-2 on the liver, kidney, heart, gastrointestinal (GI) system and especially lungs have been widely discussed. However, the effects on the pancreas-another organ that also expresses ACE II-have not been studied. METHODS: This work prospectively evaluated data from 316 patients who were admitted with a diagnosis of COVID-19 pneumonia. The patients were categorized into three according to the severity of pneumonia (mild, severe, critical). Demographic data, rate of pancreatitis, biochemical parameters, and radiological images from each group were analyzed. The patients were divided into two groups and outcomes were compared: COVID-19 patients with acute pancreatitis (Group P) and without acute pancreatitis (Group C). RESULTS: The median age was 54 (18-87), and the median age for patients with acute pancreatitis was 55 (26-84). As an expected finding, we found a positive correlation between advanced age and mortality (p = 0.0003). 12.6% of the patients had acute pancreatitis. While pancreatitis was not seen in patients on mild status, the rate of pancreatitis was 32.5% in critical patients. Hospitalization and mortality rates were higher in patients with COVID-19 accompanied by acute pancreatitis (p = 0.0038 and p < 0.0001, respectively). C-Reactive Protein (CRP) and ferritin were significantly higher in those who had pancreatitis (p < 0.0001). D-Dimer and procalcitonin levels had only a small difference (p = 0.1127 and p = 0.3403, respectively). CONCLUSION: Acute pancreatitis alone is a clinical condition that can lead to mortality and may be one of the reasons for the exaggerated immune response developing in the progression of COVID-19. Our results point out that the presence of pancreatic damage triggered by SARS-CoV-2 can deteriorate the clinical condition of patients and the mortality rate may increase in these patients.

Effects of COVID-19 pandemic on general surgical emergencies: are some emergencies really urgent? Level 1 trauma center experience.

PURPOSE: The aim of this paper is to investigate the effect of COVID-19 pandemic on general surgical emergencies as well as analyzing the effectiveness of measures taken in reducing the incidence of COVID-19 in patients and healthcare professionals. METHODS: Patients who underwent emergency surgery between the pandemic period of March 14th to May 15th 2020 and within the same period from the previous year were reviewed retrospectively. COVID-19 incidence in patients and health professionals working in the general surgery department during these periods was questioned. RESULTS: Demographic data were similar between the two time periods. The number of patients who underwent surgery in the pandemic group (n = 103) was lower than the control group (n = 252). There was a 59.1% reduction in emergency surgeries. The biggest decreases were the admissions of incarcerated hernia, uncomplicated appendicitis and acute cholecystitis (92%, 81.3%, 47.3%, respectively). During the pandemic, an increase was of patient rates who underwent surgery for complicated appendicitis and AMIO (p = 0.001, p = 0.019, respectively). The rate of mortality was higher in patients who underwent emergency surgery during pandemic (p = 0.049). The results of COVID-19 screening were positive in 6 (6/103, 5.82%) patients undergoing emergency surgery. None of the doctors working in the ward were infected with COVID-19 infection (0/20). The screening tests were positive in only two nurses working on the ward (2/24, 8.33%). CONCLUSION: In this and similar pandemics, we suggest that a new algorithm is necessary to approach emergencies and the results of this study can contribute to that end.

Hormonally Active Adrenal tumors; Challenges and Outcomes for Different Surgical Approaches.

OBJECTIVE: The aim of this study is to compare the intraoperative and short-term outcomes of different surgical approaches for hormone active and non-functional adrenal masses. METHODS: The data of 206 patients who underwent adrenal gland surgery in our clinic between 2012 and 2020 were retrospectively analyzed. Pre-operative outpatient clinic records of the patients, imaging methods, laboratory results and surgery records, operation time (OT), amount of bleeding, duration of hospital stay, and complications were evaluated. Patients were divided into two groups as those with non-functional mass (n=80) and those with hormoneactive mass (n=126). RESULTS: The median age of the patients was 52 (range 19-83) and 77.2% of them were female. Tumor size was larger in hormone active group (p=0.311), and the difference was more pronounced in the pheochromocytoma subgroup (p=0.088). The rate of transition to open surgery was similar in both groups (0.959), and no conversion to laparoscopy or conventional open surgery was performed in robotic cases. The duration of surgery (p=0.669), mean amount of blood loss (p=0.834), and mean hospital stay (p=0.195) were also similar between the two groups. Intraoperative and post-operative complications were similar between two groups (p=0.573 and p=0.415, respectively). Considering the subgroup analysis of the patients in hormone active group; the duration of hospital stay was longer in patients with Cushing syndrome (p=0.001), while there was no difference in OT and estimated blood loss between patients who were operated for Conn, Cushing, and pheochromocytoma (p=0.086 and p=0.099; respectively). CONCLUSION: Surgical results of hormone active adrenal masses were found to be similar to non-functional masses. Although the hormonal condition of the mass does not change the difficulty level of the surgical procedure, it may be recommended that the robotic approach be preferred to facilitate manipulation in these masses.

Robotic transperitoneal adrenalectomy from inception to ingenuity: the perspective on two high volume endocrine surgery centers.

BACKGROUND: With increased utilization of robotic technology, robotic adrenalectomy (RA) became popular in certain high-volume centers as an alternative to conventional laparoscopic adrenalectomy (LA). The aim of the present study was to evaluate clinical and surgical outcomes of RA in two high-volume centers in Turkey. METHODS: Between 2012 and 2019, consecutive patients who underwent robotic transperitoneal adrenalectomy in two referral centers for surgical endocrine diseases in Turkey were analyzed retrospectively. RESULTS: A total of 111 patients were analyzed. Mean diameter of the tumor in preoperative imaging was 38.6±2.0 mm. Total operation time was 135.4±47.9 min. The analysis of the learning curve period and the post-learning curve period in both centers demonstrated that the total surgery time decreased from 152.68±48.6 to 118.8±37.1 min, and the console time decreased from 113.2±38.9 to 81.6±35.1 min (P<0.0001). In 8 patients, complications arose during the surgery and postoperative complications were observed in 10 patients. Intraoperative complication rate was 28% in patients with a tumor diameter of greater than 50 mm (P<0.0001). There was no mortality. CONCLUSIONS: Our study demonstrated that RA is a safe and effective procedure with low-morbidity and without mortality in high number of cases.

Pure transoral robotic thyroidectomy; institutional adaptation and early results from a tertiary endocrine surgery centre.

PURPOSE: Novel thyroidectomy techniques have been described to minimize the visible scar. Hereby, we aim to present our experience with transoral robotic thyroidectomy (TORT) without axillary access. MATERIAL AND METHODS: Between August 2018 and March 2019, six eligible patients were enrolled to undergo TORT. Procedures were performed by using the Da Vinci Xi platform under intermittent intraoperative nerve monitoring. RESULTS: All patients were female, and the mean age was 40.0 ± 14.4 years. Three patients underwent total thyroidectomy, and lobectomy was performed for the remaining three patients. In one patient, the procedure was converted to conventional open thyroidectomy due to bleeding. The mean docking time, console time and total operative time were 22.8 ± 5.2 min, 118.5 ± 48.7 min and 218.29 ± 50.6 min for total thyroidectomy and 21.8 ± 4.1 min, 68.6 ± 6.1 min and 177.6 ± 15.1 min for lobectomy, respectively. All patients were discharged uneventfully. CONCLUSIONS: Pure TORT is a safe procedure, when performed in carefully selected patients by experienced surgeons, but further prospective studies with larger number of patients are required.

Transperitoneal laparoscopic surgery in large adrenal masses.

INTRODUCTION: The laparoscopic adrenalectomy (LA) has become the gold standard since the transperitoneal laparoscopic approach was first reported. AIM: To evaluate the applicability, safety and short-term results of laparoscopic surgery in adrenal masses over 6 cm. MATERIAL AND METHODS: Demographic data, hormonal activities, imaging modalities, operative findings, operation time, conversion rates, complications, duration of hospital stay and histopathologic results of 128 patients who underwent laparoscopic adrenalectomy were evaluated retrospectively. Patients included in the learning curve (n = 23), robotic surgery cases (n = 15) and patients with suspected metastasis (n = 4) were excluded from the study. Six cm mass size was taken as a reference and two groups were formed (group 1: < 6 cm, group 2: ≥ 6 cm). The results of the two groups were compared. RESULTS: There were 64 cases in group 1 and 22 cases in group 2. Functional mass ratio and mass sides were similar between the groups (p = 0.30 and p = 0.17, respectively). The mean mass size in group 1 was 36.4 ±11.2 mm and in group 2 82.4 ±15.5 mm. The conversion rate was similar between the two groups (p = 0.18). The duration of surgery was 135.5 ±8.29 min in group 1, 177.0 ±14.9 min in group 2 (p = 0.014). Morbidity and lengths of hospital stay were similar (p = 0.76, p = 0.34 respectively). Adrenocortical carcinoma was detected in three cases in group 1, which were completed laparoscopically, and in two cases in group 2, which were converted to open surgery (p = 0.46). CONCLUSIONS: Although open surgery is still recommended in the guidelines, studies are now being carried out to ensure that laparoscopy can be safely performed on masses over 6 cm. There was no difference between short-term follow-up and histopathologic results in our study.